Quotes and parenthesis are optional, but can be used to disambiguate
complex queries, or queries that contain words like 'and' which can be
mistaken for operators.

Results

If your result set is large, it will be truncated by the metasearch
engine. Try to make queries as precise as possible. If your result set
is large, you can use the facets on the left to narrow the search until
you find what you are looking for (see later).

Sorting Results

You can sort results by Relevance, Title, or Date (descending or ascending). Relevance
ranking takes place on the client side according to the popular TF-IDF algorithm.

Delimiting Results By Facets

You can specify your search criteria further by using the facets on the left.
For instance, to limit results to a certain media type or to a certain source database,
select the items of interest from the Medium or Source facets.

The subject facet is represented as a 'tag cloud', meaning that a term in a larger font
indicates a subject that appears more frequently in the current set of results.

Response Time

Pazpar2 is a high-performance metasearch system, designed to make
results available to the user from the target databases as quickly as
possible. That means that as soon as results become available, they are
displayed. However, the performance of individual back-end databases
are outside of our control. What this means is that if one database is
slow to respond, the system will keep waiting until all results have
been returned. However, during this time, the user can browse the
available results, change the sort order, start new searches, and
generally use the system normally.